Went to the cabin a few weeks back and thought - hey - I'll take a couple of guns and shoot for a few...
the .38 was fine...
unloaded the 9mm JHP from the mags and loaded them up with 'what I thought' was 9mm FMJ...
*CLICK*
dang... what the...
manipulates the slide and...
*CLICK*
WTF?
Turns out I accidentally grabbed this...

and not what I wanted... this:

Put small dents in the primer... but no bang... thankfully.